v4.1.6

• Updated NPM.

v4.1.5

• Updated NPM.
• Fixed lint issues.

v4.1.4

• Updated NPM.

v4.1.3

• Updated package.json.

v4.1.2

• Updated NPM.

v4.1.1

• Updated README.
• Updated NPM.

v4.1.0

• Modified palette method to use optionsargument.
• Modified findContrast method to use options argument.
• Updated tests.
• Updated README.
• Updated NPM.

v4.0.2

• Removed private properties.

v4.0.1

• Added rollup.config.js.
• Modified rollup to use umd for output.
• Removed filepath from package.json.
• Added dist folder to files in package.json.

v4.0

• Removed mutable Color.
• Renamed ColorImmutable to Color.
• Converted to ES6 module.